This also might be a stretch, but when a guy is getting you a steal, and a block consistently, he's proving his worth on the defensive end. Not to mention the rebounding game that he possesses, and oh yeah... the defense!

He's hell for point guards and shooting guards because he's long and he's quick, and not one that you can go past.

The only thing limiting his defense would be his strength, but if he can average 2 steals like he's doing in preseason, then he gets a "bye" for this season.